US20160077323A1 - Endoscope - Google Patents
Endoscope Download PDFInfo
- Publication number
- US20160077323A1 US20160077323A1 US14/953,941 US201514953941A US2016077323A1 US 20160077323 A1 US20160077323 A1 US 20160077323A1 US 201514953941 A US201514953941 A US 201514953941A US 2016077323 A1 US2016077323 A1 US 2016077323A1
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- US
- United States
- Prior art keywords
- distal end
- section
- mounting
- terminal
- face
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B23/00—Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices
- G02B23/24—Instruments or systems for viewing the inside of hollow bodies, e.g. fibrescopes
- G02B23/2476—Non-optical details, e.g. housings, mountings, supports
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/00064—Constructional details of the endoscope body
- A61B1/00071—Insertion part of the endoscope body
- A61B1/0008—Insertion part of the endoscope body characterised by distal tip features
- A61B1/00096—Optical elements
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/00064—Constructional details of the endoscope body
- A61B1/00071—Insertion part of the endoscope body
- A61B1/0008—Insertion part of the endoscope body characterised by distal tip features
- A61B1/00101—Insertion part of the endoscope body characterised by distal tip features the distal tip features being detachable
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/00064—Constructional details of the endoscope body
- A61B1/00105—Constructional details of the endoscope body characterised by modular construction
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/00112—Connection or coupling means
- A61B1/00114—Electrical cables in or with an endoscope
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/00112—Connection or coupling means
- A61B1/00121—Connectors, fasteners and adapters, e.g. on the endoscope handle
- A61B1/00124—Connectors, fasteners and adapters, e.g. on the endoscope handle electrical, e.g. electrical plug-and-socket connection
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B23/00—Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices
- G02B23/24—Instruments or systems for viewing the inside of hollow bodies, e.g. fibrescopes
- G02B23/2407—Optical details
- G02B23/2423—Optical details of the distal end
- G02B23/243—Objectives for endoscopes
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B23/00—Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices
- G02B23/24—Instruments or systems for viewing the inside of hollow bodies, e.g. fibrescopes
- G02B23/26—Instruments or systems for viewing the inside of hollow bodies, e.g. fibrescopes using light guides
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
- G02B7/14—Mountings, adjusting means, or light-tight connections, for optical elements for lenses adapted to interchange lenses
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/00002—Operational features of endoscopes
- A61B1/00059—Operational features of endoscopes provided with identification means for the endoscope
Definitions
- the present invention relates to an endoscope in which two or more kinds of adapters are individually detachably attachable to a distal end portion located at a distal end in an inserting direction of an insertion section.
- endoscopes are widely used in a medical field and an industrial field.
- an endoscope used in the medical field it is possible to, by inserting an elongated insertion section into a body cavity serving as a subject, observe an organ in the body cavity and perform various kinds of treatment using a treatment instrument inserted into a treatment instrument insert-through channel according to necessity.
- an endoscope used in the industrial field it is possible to, by inserting an elongated insertion section into a jet engine, a pipe in a factory, or the like serving as an object, perform observation, various kinds of treatment, and the like of scratches, corrosion, and the like in the object.
- a configuration is well known in which, in a distal end portion located on a distal end side in an inserting direction of an insertion section of an endoscope (hereinafter simply referred to as distal end side), an image pickup unit including an objective lens unit and an image pickup device such as a CCD is provided and an illumination unit or the like that illuminates an inside of an object is provided.
- an image pickup unit including an objective lens unit and an image pickup device such as a CCD is provided and an illumination unit or the like that illuminates an inside of an object is provided.
- a configuration is also well known in which the objective lens unit and the illumination unit are provided in a known optical adapter (hereinafter simply referred to as adapter) detachably attachable to the distal end portion of the insertion section.
- adapter detachably attachable to the distal end portion of the insertion section.
- a direct-view adapter for observing a front in the inserting direction of the insertion section (hereinafter simply referred to as front) and a side-view adapter for observing a side different from the inserting direction are well known.
- the respective adapters are properly used according to observation targets and uses.
- a plurality of adapters having different visual field angles is present in each of the direct-view adapter and the side-view adapter. These adapters are also properly used according to observation targets and uses. Therefore, a plurality of kinds of adapters is individually detachably attachable to the distal end portion.
- Japanese Patent Application Laid-Open Publication No. 2004-313241 discloses a configuration in which, in a plurality of adapters detachably attachable to a distal end portion, identification resistors having different resistance values for each of the adapters are provided and, when an adapter is attached to the distal end portion, an identification resistor comes into contact with a terminal for resistor identification provided in the distal end portion and energizes the identification resistor, whereby a CPU electrically connected to the terminal via a lead wire in a control unit, to which an endoscope is connected, reads a resistance value and automatically detects a type of the adapter attached to the distal end portion from the resistance value.
- Japanese Patent Application Laid-Open Publication No. 2004-313241 also discloses a configuration in which, since it is difficult to reduce the adapter or the distal end portion in diameter if a light source such as a light emitting element is provided in the adapter or the distal end portion of an insertion section, the light source is provided in the control unit, a light guide that guides illumination light irradiated from the light source to a distal end face located at a distal end in an inserting direction of the distal end portion (hereinafter simply referred to as distal end) is inserted through the endoscope, the illumination light emitted from a distal end of the light guide is made incident in the adapter, and an illumination optical system that supplies the illumination light into an object is provided.
- a light source such as a light emitting element
- the attachment of the adapter to the distal end portion including the configurations disclosed in Japanese Patent Application Laid-Open Publication No. 2004-313241 is performed by coating, with an inner circumference of a proximal end side in the inserting direction of the adapter (hereinafter simply referred to as proximal end side), an outer circumference of a mounting and detaching section located on a distal end side of the distal end portion and screwing, for example, with a male screw formed in the outer circumference of the mounting and detaching section, a female screw formed in an inner circumference of a stop ring extending from a proximal end in the inserting direction of the adapter (hereinafter simply referred to as proximal end) backward in the inserting direction (hereinafter simply referred to as backward).
- the terminal functioning as a member for adapter identification explained above, the lead wire extending from the terminal, the light guide explained above, and various channels are provided.
- An endoscope is an endoscope in which two or more kinds of adapters are individually detachably attachable to a distal end portion located at a distal end in an inserting direction of an insertion section.
- the endoscope includes: a mounting and detaching section located on the distal end side in the inserting direction in the distal end portion, a connecting section of the adapter being detachably mountable on an outer circumference of the mounting and detaching section and a diameter of the mounting and detaching section being smaller than a diameter of another part of the distal end portion; a terminal provided to be exposed on a distal end face of the distal end in the inserting direction in the distal end portion in the mounting and detaching section, when the adapter is mounted on the outer circumference of the mounting and detaching section, the terminal coming into contact with an identification resistor provided in the adapter and having different resistance values for each of the adapters; a lead wire inserted through the insertion section, the lead wire energizing the
- FIG. 1 is a perspective view of an endoscope system including an endoscope showing a first embodiment
- FIG. 2 is a sectional view of an adapter shown in FIG. 1 taken along line II-II;
- FIG. 3 is a plan view showing a distal end face of a distal end portion in FIG. 1 ;
- FIG. 4 is a sectional view of a distal end portion taken along line IV-IV in FIG. 3 ;
- FIG. 5 is a sectional view of the distal end portion taken along line V-V in FIG. 3 ;
- FIG. 6 is a sectional view of the distal end portion taken along line VI-VI in FIG. 5 ;
- FIG. 7 is a perspective view showing the distal end portion in FIG. 4 and FIG. 5 excluding an image pickup cover;
- FIG. 8 is an exploded perspective view in which a distal end portion main body is separated at the distal end portion in FIG. 7 ;
- FIG. 9 is an exploded perspective view in which a flexible board is separated from a part other than a mounting and detaching section at the distal end portion in FIG. 8 ;
- FIG. 10 is a partial sectional view schematically showing a part of a distal end portion of an insertion section of an endoscope in a second embodiment
- FIG. 11 is a plan view of a distal end face of the distal end portion in FIG. 10 ;
- FIG. 12 is a plan view showing a modification of a disposition position of terminals on a distal end face of a projecting section in FIG. 10 ;
- FIG. 13 is a partial sectional view schematically showing a part of a distal end portion of an insertion section of an endoscope in a third embodiment.
- FIG. 14 is a plan view of a distal end face of the distal end portion in FIG. 13 .
- FIG. 1 is a perspective view of an endoscope system including an endoscope showing the present embodiment.
- a main part is configured by an endoscope 20 , an apparatus main body 50 connected to the endoscope 20 , and two or more kinds of adapters 1 .
- an apparatus main body 50 connected to the endoscope 20
- two or more kinds of adapters 1 two or more kinds of adapters 1 .
- a main part is configured by including an elongated and flexible insertion section 10 , an operation section 15 connected to a proximal end in an inserting direction S of the insertion section 10 and including a grasping section 15 h , and a universal cord 17 extended from the grasping section 15 h of the operation section 15 .
- a distal end portion 11 to which the two or more kinds of adapters 1 are individually detachably attachable, a bending section 12 bendable in, for example, upward, downward, left, and right four directions according to operation of a joystick 15 j provided in the operation section 15 , and a long flexible tube section 13 formed of a flexible member are concatenated to the insertion section 10 in order from a distal end side of the insertion section 10 .
- a proximal end of the flexible tube section 13 is connected to the operation section 15 .
- the apparatus main body 50 has, for example, a box shape.
- a monitor 55 that displays an endoscopic image picked up by an image pickup device 27 (see FIG. 4 ) of the endoscope 20 is fixed to an armor housing 50 g , which is configured by, for example, magnesium die cast, to be capable of opening and closing with respect to, for example, the armor housing 50 g .
- the monitor 55 may be detachably attachable to the armor housing 50 g or may be fixed to the armor housing 50 g in a state in which a monitor surface is always exposed.
- FIG. 2 is a sectional view of the adapter in FIG. 1 taken along line II-II.
- FIG. 3 is a plan view showing a distal end face of the distal end portion in FIG. 1 .
- FIG. 4 is a sectional view of the distal end portion taken along line IV-IV in FIG. 3 .
- FIG. 5 is a sectional view of the distal end portion taken along line V-V in FIG. 3 .
- FIG. 6 is a sectional view of the distal end portion taken along line VI-VI in FIG. 5 .
- FIG. 7 is a perspective view showing the distal end portion in FIG. 4 and FIG. 5 excluding an image pickup cover.
- FIG. 8 is an exploded perspective view in which a distal end portion main body is separated at the distal end portion in FIG. 7 .
- FIG. 9 is an exploded perspective view in which a flexible board is separated from a part other than a mounting and detaching section at the distal end portion in FIG. 8 .
- the distal end portion 11 includes a mounting and detaching section 40 located on a distal end side in the distal end portion 11 .
- the adapter 1 is detachably mountable on an outer circumference 40 g of the mounting and detaching section 40 .
- the mounting and detaching section 40 is smaller in diameter than the other part 41 of the distal end portion 11 .
- the mounting and detaching section 40 includes, on an inside, a distal end portion main body 31 , which is a first frame, formed in a substantially columnar shape. Note that an outer circumference 31 g of the distal end portion main body 31 configures the outer circumference 40 g of the mounting and detaching section 40 .
- a male screw 45 is formed, with which a female screw 6 of a stop ring 5 (for both of which, see FIG. 2 ) explained below of the adapter 1 is capable of being fit when the adapter 1 is mounted on the mounting and detaching section 40 .
- a projecting section 31 t projecting forward from the distal end face 31 s is formed on a distal end face 31 s of the distal end portion main body 31 . Note that the distal end face 31 s configures a distal end face 11 s of the distal end portion 11 .
- the projecting section 31 t is a member for, when the adapter 1 is mounted on the mounting and detaching section 40 , performing positioning of the adapter 1 with respect to the distal end portion 11 by being fit in a recessed section 4 h formed on a proximal end face of an adapter main body 4 explained below of the adapter 1 .
- a lens unit 21 which is a first objective optical system, for observing an inside of an object is provided.
- the lens unit 21 is configured from a plurality of lenses, for example, three lenses. As shown in FIG. 3 and FIG. 4 , an objective lens 21 a located most forward in the inserting direction S is fixed to the distal end portion main body 31 to be exposed on a distal end face 31 ts of the projecting section 31 t . Note that the number of the lenses configuring the lens unit 21 is not limited to three.
- the distal end face 31 ts configures the distal end face 11 s of the distal end portion 11 .
- a light guide holding hole 31 h piercing through the distal end portion main body 31 along the inserting direction S is formed in a position in the figure lower than the objective lens 21 a as shown in FIG. 3 .
- the universal cord 17 of the endoscope 20 , and a distal end side of a light guide 25 inserted through the operation section and the insertion section 10 are inserted through the light guide holding hole 31 h .
- an emission end face 25 s is fixed to be exposed on the distal end face 31 s.
- a proximal end of the light guide 25 is located to be opposed to a not-shown light source provided in the apparatus main body 50 .
- the light guide 25 is inserted through to extend along outer circumferences of a lens frame 32 and a device frame 28 explained below in a position in the figure lower than the lens frame 32 , the image pickup device 27 , an electric circuit boards 29 , and a signal line 36 explained below.
- the light guide 25 guides illumination light made incident from the proximal end to the emission end face 25 s of the light guide 25 and, when the adapter 1 is mounted on the mounting and detaching section 40 , supplies the illumination light irradiated from the emission end face 25 s to the adapter 1 .
- the illumination light supplied to the adapter 1 is irradiated on the inside of the object via a not-shown illumination optical system provided in the adapter 1 .
- the terminal 34 configures an anode terminal electrically connected to, via the pin 3 p , an anode side of the identification resistor 3 provided in the adapter 1 when the adapter 1 is mounted on the mounting and detaching section 40 .
- the terminal 35 configures a cathode terminal electrically connected to, via the pin 3 p , a cathode side of the identification resistor 3 provided in the adapter 1 when the adapter 1 is mounted on the mounting and detaching section 40 .
- the terminals 34 and 35 are provided to be separated from each other on the distal end face 31 ts in positions where the terminals 34 and 35 sandwich the objective lens 21 a in plan view of the distal end face 31 ts.
- the terminals 34 and 35 are provided to be separated from each other such that distal ends thereof are exposed in positions on the distal end face 31 ts line-symmetrical with respect to a line “a” that connects a center 21 ac of the objective lens 21 a and a center 25 sc of the emission end face 25 s of the light guide 25 .
- a reason for providing the terminals 34 and 35 to be separated from each other in the positions where the terminals 34 and 35 sandwich the objective lens 21 a is to insert the terminals 34 and 35 through the projecting section 31 t such that the distal ends are exposed on the distal end face 31 ts without increasing an area of the distal end face 31 ts , that is, without increasing the projecting section 31 t in diameter.
- the area of the distal end face 31 ts has to be increased in order to secure a disposition region of the terminal 34 on the distal end face 31 ts and, as a result, the projecting section 31 t is increased in diameter but, if the terminals 34 and 35 are disposed to be separated from each other to sandwich the objective lens 21 a as shown in FIG.
- the terminals 34 and 35 can be disposed in a free region of the distal end face 31 ts even if the area of the distal end face 31 ts is not increased, it is possible to reduce the projecting section 31 t , that is, the mounting and detaching section 40 in diameter.
- the disposition positions of the terminals 34 and 35 on the distal end face 31 ts are not limited to the positions shown in FIG. 3 .
- the terminals 34 and 35 may be disposed in any positions other than a disposition region of the objective lens 21 a on the distal end face 31 ts as long as the mounting and detaching section 40 is not increased in diameter in the positions.
- the adapter 1 mounted on the outer circumference 40 g of the mounting and detaching section 40 includes the adapter main body 4 formed in a substantially columnar shape.
- the recessed section 4 h formed to be recessed forward from the proximal end face along the inserting direction S is formed in a position opposed to the projecting section 31 t when the adapter 1 is mounted on the mounting and detaching section 40 .
- the recessed section 4 h is a part in which the projecting section 31 t fits as explained above when the adapter 1 is mounted on the mounting and detaching section 40 .
- a stop ring 5 which is a connecting section, in an inner circumference of which the female screw 6 is formed, is extended backward from an outer circumference of a proximal end of the adapter main body 4 .
- the stop ring 5 is screwed with the male screw 45 formed in the outer circumference 31 g of the distal end portion main body 31 when the adapter 1 is mounted on the mounting and detaching section 40 , that is, the projecting section 31 t is fit in the recessed section 4 h . Consequently, the adapter 1 is fixed to an outer circumference of the mounting and detaching section 40 .
- the female screw 6 is capable of being screwed with the male screw 45 , the adapter 1 is detachably mountable on the mounting and detaching section 40 .
- an outer diameter of an outer circumference 4 g of the adapter main body 4 and an outer diameter of an outer circumference 5 g of the stop ring 5 are formed substantially the same as an outer diameter of an outer circumference 41 g of the other part 41 of the distal end portion 11 when the adapter 1 is mounted on the mounting and detaching section 40 . Consequently, even if the adapter 1 is mounted on the mounting and detaching section 40 , an outer circumference of the adapter 1 is not located to protrude further to an outer side in a radial direction R than an outer circumference of the distal end portion 11 .
- an objective lens unit 2 for observing the inside of the object configured from a plurality of lenses, for example, three lenses is fixed such that a lens located most forward is exposed on a distal end face 1 s of the adapter 1 .
- the number of lenses configuring the objective lens unit 2 is not limited to three.
- an illumination optical system configured from a not-shown elongated rod lens and a not-shown illumination lens along the inserting direction S is fixed such that the illumination lens is exposed on the distal end face 1 s when the adapter 1 is mounted on the mounting and detaching section 40 .
- the identification resistor 3 which has a different resistance value for each of a plurality of adapters 1 , electrically connected to the terminals 34 and 35 when the adapter 1 is mounted on the mounting and detaching section 40 is provided.
- the pins 3 p such as sliding pins movable back and forth in the inserting direction S are respectively electrically connected.
- proximal ends of the respective pins 3 p are exposed in positions where the terminals 34 and 35 come into contact with the pins 3 p when the adapter 1 is mounted on the mounting and detaching section 40 .
- a recessed section 31 d recessed forward is formed on a proximal end face of the distal end portion main body 31 .
- An outer circumference of a part of a lens frame 32 which is a second frame, is fit and fixed to an inner circumference 31 n formed by the recessed section 31 d.
- a lens unit 22 which is a second objective optical system, configured from a plurality of lenses, for example, two lenses is fixed to be located behind the lens unit 21 .
- the number of lenses configuring the lens unit 22 is not limited to two.
- the image pickup device 27 picks up an image of an observation part in the object via the objective lens unit 2 and the lens units 21 and 22 .
- the electric circuit boards 29 for adjusting an electric output of the image pickup device 27 are electrically connected to the image pickup device 27 .
- the universal cord 17 , the operation section 15 , and a distal end of a signal line 36 inserted through the insertion section 10 are electrically connected to the electric circuit boards 29 .
- a proximal end of the signal line 36 is connected to a not-shown image processing unit or the like in the apparatus main body 50 . Consequently, the image of the observation part picked up by the image pickup device 27 is transmitted to the image processing unit in the apparatus main body 50 via the electric circuit boards 29 and the signal line 36 and thereafter displayed on the monitor 55 .
- a distal end of an image pickup case 95 that covers a lens close to the image pickup device 27 configuring the lens unit 22 , the image pickup device 27 , the electric circuit boards 29 , and the distal end side of the signal line 36 is fixed to the outer circumference 31 g on a proximal end side of the distal end portion main body 31 .
- a fixing position of the image pickup case 95 to the outer circumference 31 g of the distal end portion main body 31 may be set forward relative to a position shown in FIG. 4 and FIG. 5 .
- a male screw 45 with which the female screw 6 of the adapter 1 is screwed may be formed in an outer circumference of the image pickup case 95 .
- the distal end of the lead wire 26 has to be directly connected to the terminals 34 and 35 via a space in the mounting and detaching section 40 , that is, a lead wire insert-through hole formed in the distal end portion main body 31 .
- the mounting and detaching section 40 is formed smaller in diameter than the other part 41 . Therefore, it is difficult to separately secure the space for inserting the lead wire 26 in the mounting and detaching section 40 .
- a configuration is adopted in which the distal end of the lead wire 26 is located behind the mounting and detaching section 40 and the distal end of the lead wire 26 and the terminals 34 and 35 are electrically connected by a flexible board 23 inserted at least through the mounting and detaching section 40 along the inserting direction S.
- the flexible board 23 is configured from a semicircular terminal connecting section 23 a to which proximal ends of the terminals 34 and 35 are electrically connected, a gap passing section 23 b concatenated to the terminal connecting section 23 a , a lens frame cutout passing section 23 c concatenated to the gap passing section 23 b , and a lead wire connecting section 23 d concatenated to the lens frame cutout passing section 23 c.
- the terminal connecting section 23 a is formed to be bent approximately 90° to a right side in FIG. 8 and FIG. 9 from a distal end of the gap passing section 23 b to thereby being located not to be superimposed on the lens units 21 and 22 with respect to the inserting direction S in front of the lens unit 22 .
- the terminal connecting unit 23 a is formed in the semicircular shape in order to prevent the terminal connecting section 23 a from blocking a light beam made incident on the lens unit 22 from the lens unit 21 .
- the terminals 34 and 35 are electrically connected by solder or the like in a space 31 dh in front of a distal end of the lens frame 32 in the recessed section 31 d.
- terminals 34 and 35 are electrically connected to the distal end face in the vicinity of the opening end portion 23 ak of the semicircular terminal connecting section 23 a in order to dispose the distal ends of the terminals 34 and 35 to be separated from each other to hold the objective lens 21 a on the distal end face 31 ts as explained above.
- the flexible board 23 is used for the electric connection of the terminals 34 and 35 , it is possible to freely set insert-through positions of the terminals 34 and 35 in the projecting section 31 t . This is because it is difficult to form, with a lead wire, the semicircular terminal connecting section 23 a in the present embodiment.
- the gap passing section 23 b is inserted through a gap 33 provided by forming a cutout 31 k in the inner circumference 31 n on left in FIG. 6 between an outer circumference 32 g of the lens frame 32 and the inner circumference 31 n formed by the recessed section 31 d.
- the cutout 31 k may be formed in the outer circumference 32 g of the lens frame 32 or may be formed in both of the inner circumference 31 n and the outer circumference 32 g .
- the gap 33 may be provided by a groove formed in at least one of the inner circumference 31 n and the outer circumference 32 g , and is not limited to be provided by the cutout 31 k.
- a forming position of the gap 33 by the cutout 31 k is not limited to left in FIG. 6 and may be right or may be an upper or lower part.
- a passing position of the gap passing section 23 b also changes. Therefore, a bending direction of the terminal connecting section 23 a from the distal end of the gap passing section 23 b also changes in order to locate the terminal connecting section 23 a in front of the lens unit 22 .
- the lens frame cutout passing section 23 c passes a cutout 32 k formed on left in FIG. 7 to FIG. 9 in the outer circumference 32 g of the lens frame 32 to thereby be located along left of the outer circumference 32 g of the lens frame 32 .
- a forming position of the cutout 32 k is not limited to the left in FIG. 7 to FIG. 9 and may be right or may be an upper or lower part according to the forming position of the gap 33 .
- the lead wire connecting section 23 d is a part to which the distal end of the lead wire 26 is electrically connected by solder or the like.
- the lead wire connecting section 23 d is located along left of an outer circumference of the device frame 28 . Note that, as explained above, a disposition position of the lead wire connecting section 23 d with respect to the outer circumference of the device frame 28 is different according to a disposition position of the lens frame cutout passing section 23 c.
- the terminals 34 and 35 and the distal end of the lead wire 26 are electrically connected via the flexible board 23 .
- the terminals 34 and 35 are shown as being electrically connected to the semicircular terminal connecting section 23 a of the flexible board 23 in the space 31 dh of the recessed section 31 d in the mounting and detaching section 40 .
- the distal end of the lead wire 26 is electrically connected to the lead wire connecting section 23 d of the flexible board in the other part 41 behind the mounting and detaching section 40 .
- the flexible board 23 is shown as being inserted through the gap 33 provided by forming the cutout 31 k in the inner circumference 31 n between the outer circumference 32 g of the lens frame 32 and the inner circumference 31 n formed by the recessed section 31 d.
- the distal end of the lead wire 26 is electrically connected to the proximal end of the flexible board 23 in the other part 41 .
- the distal end of the flexible board 23 is electrically connected to the terminals 34 and 35 in the mounting and detaching section 40 . Therefore, the lead wire 26 is not inserted through the mounting and detaching section 40 .
- the gap passing section 23 b is inserted through the gap 33 because the cutout is formed in the inner circumference 31 n between the outer circumference 32 g and the inner circumference 31 n , that is, the gap passing section 23 b is inserted through the gap 33 formed using a fitting surface of the outer circumference 32 g and the inner circumference 31 n . Therefore, it is unnecessary to separately provide an insert-through space for the flexible board 23 in the distal end portion main body 31 . Further, the distal end portion main body 31 is not increased in diameter according to the formation of the gap 33 . Therefore, it is possible to reduce the mounting and detaching section 40 in diameter.
- the terminals 34 and 35 the distal ends of which are exposed on the distal end face 31 ts , used for distinguishing, when the adapter 1 is mounted on the mounting and detaching section 40 , a type of the adapter 1 by energizing the identification resistor 3 via the pins 3 p is shown as being provided to be separated from each other in the positions where the terminals 34 and 35 sandwich the objective lens 21 a because the terminal connecting section 23 a of the flexible board 23 is formed in the semicircular shape and the proximal ends of the terminals 34 and 35 are electrically connected to the vicinity of the opening end portion 23 ak.
- the terminal connecting section 23 a to which the terminals 34 and 35 are electrically connected, is a part of the flexible board 23 , it is possible to change the shape of the terminal connecting section 23 a . Further, since connecting positions of the terminals 34 and 35 to the terminal connecting section 23 a can also be freely set, it is possible to freely set the insert-through positions of the terminals 34 and 35 in the projecting section 31 t in positions where the projecting section 31 t is not increased in diameter. Therefore, it is possible to reduce the mounting and detaching section 40 in diameter.
- terminals 34 and 35 are electrically connected to the terminal connecting section 23 a located to be bent approximately 90° from the distal end of the gap passing section 23 b , it is possible to further reduce the connecting section for the terminals in size than the configuration in which the lead wire is directly connected to the terminals. Therefore, it is possible to reduce the mounting and detaching section in diameter.
- the endoscope 20 including a configuration that can realize a reduction in the diameter of the mounting and detaching section 40 even if the mounting and detaching section 40 includes a member for adapter identification.
- FIG. 10 is a partial sectional view schematically showing a part of a distal end portion of an insertion section of an endoscope in the present embodiment.
- FIG. 11 is a plan view of a distal end face of the distal end portion in FIG. 10 .
- FIG. 12 is a plan view showing a modification of a disposition position of terminals on a distal end face of a projecting section in FIG. 10 .
- a configuration of the endoscope in the second embodiment is different from the endoscope in the first embodiment shown in FIG. 1 to FIG. 9 explained above in that, in a mounting and detaching section, a flexible board is inserted through a light guide holding hole. Therefore, only this difference is explained.
- Components same as the components in the first embodiment are denoted by the same reference numerals and signs and explanation of the components is omitted.
- a flexible board 123 that electrically connects the terminal 34 and 35 and distal end of the lead wire 26 is configured from a terminal connecting section 123 a , a light guide holding hole insert-through section 123 b concatenated to the terminal connecting section 123 a , and a not-shown lead wire connecting section concatenated to the light guide holding hole insert-through section 123 b.
- the light guide holding hole insert-through section 123 b is inserted through the light guide holding hole 31 h together with the light guide 25 . That is, in the mounting and detaching section 40 , the light guide holding hole insert-through section 123 b is inserted through the light guide holding hole 31 h.
- the light guide holding hole insert-through section 123 b is inserted through the light guide holding hole 31 h in the other part 41 as well.
- a part of the flexible board 123 inserted through the other part 41 may be drawn out to an outside of the light guide holding hole 31 h.
- the light guide holding hole insert-through section 123 b is drawn out to the outside of the light guide holding hole 31 h in the other part 41 .
- the distal end of the lead wire 26 is electrically connected to a lead wire connecting section concatenated to the light guide holding hole insert-through section 123 b.
- the terminal connecting section 123 a in front of the light guide holding hole 31 h , is bent approximately 90° from a distal end of the light guide holding hole insert-through section 123 b and located to be opposed to the distal end face 31 ts . As shown in FIG. 10 to FIG. 12 , the terminal connecting section 123 a is fixed to a position other than the disposition region of the objective lens 21 a on the distal end face 31 ts.
- the terminals 34 and 35 are electrically connected to, by solder or the like, a distal end face of the terminal connecting section 123 a fixed to the distal end face 31 ts.
- connecting positions of the terminals 34 and 35 to the terminal connecting section 123 a may be provided in positions shifted to an outer circumferential edge side of the distal end face 31 ts from the positions where the terminals 34 and 35 sandwich the objective lens 21 a as shown in FIG. 12 .
- the terminals 34 and 35 may be provided to be separated from each other in positions line-symmetrical with respect to the line “a”. As shown in FIG. 11 , the terminals 34 and 35 may be located side by side.
- the projecting section 31 t can be further reduced in diameter than in disposition positions of the terminals 34 and 35 in FIG. 11 .
- connection of the terminals 34 and 35 to the flexible board 123 is shown as being performed to the terminal connecting section 123 a fixed to the distal end face 31 ts.
- terminals 34 and 35 are electrically connected to the terminal connecting section 123 a located to be bent approximately 90° from the distal end of the light guide holding hole insert-through section 123 b , it is possible to further reduce the connecting section for the terminals in size than the configuration in which the lead wire is directly connected to the terminals. Therefore, it is possible to reduce the mounting and detaching section in diameter.
- water tightness has to be secured for three sections, i.e., the hole in which the lens unit 21 is provided, the light guide holding hole 31 h , and the gap 33 in the distal end portion main body 31 .
- water tightness only has to be secured for two sections, i.e., the hole in which the lens unit 21 is provided and the light guide holding hole 31 h . Therefore, it is easy to secure water tightness for the mounting and detaching section 40 . Further, assemblability is also improved.
- FIG. 13 is a partial sectional view schematically showing a part of a distal end portion of an insertion section of an endoscope in the present embodiment.
- FIG. 14 is a plan view of a distal end face of the distal end portion in FIG. 13 .
- a configuration of the endoscope in the third embodiment is different from the endoscope in the second embodiment shown in FIG. 10 to FIG. 12 explained above in that terminals are also provided in a light guide holding hole. Therefore, only this difference is explained.
- Components same as the components in the second embodiment are denoted by the same reference numerals and signs and explanation of the components is omitted.
- a flexible board 223 is inserted through the light guide holding hole 31 h . Therefore, a part of the flexible board 223 located in the mounting and detaching section 40 is also naturally inserted through the light guide holding hole 31 h.
- a proximal end side of the flexible board 223 is drawn out to the outside of the light guide holding hole 31 h in the other part 41 .
- the distal end of the lead wire 26 is electrically connected to a not-shown lead wire connecting section provided at the proximal end of the flexible board 223 .
- terminals 134 and 135 are provided such that distal ends of the terminals 134 and 135 are exposed on the distal end face 31 s together with the emission end face 25 s of the light guide 25 from a distal end opening as shown in FIG. 14 .
- functions of the terminals 134 and 135 are the same as the functions of the terminals 34 and 35 explained above.
- the terminals 134 and 135 are provided to be separated from each other in positions shifted to an outer circumferential edge of the distal end face 31 s from the positions where the terminals 134 and 135 sandwich the objective lens 21 a on the distal end face 31 s . More specifically, the terminals 134 and 135 are provided to be separated from each other in positions line-symmetrical with respect to the line “a”.
- the terminals 134 and 135 are provided to be separated from each other in positions between an inner circumferential face of the light guide holding hole 31 h and an outer circumferential face of the light guide 25 .
- a part of the terminals 134 and 135 are set in contact with the outer circumferential face of the light guide 25 having insulation. Parts of the terminals 134 and 135 on an opposite side of contact parts with the light guide 25 are located to be separated to have a gap 130 with respect to the distal end portion main body 31 .
- a distal end side of the flexible board 223 is divided into two, though not shown.
- the respective distal ends are electrically connected respectively to step sections 134 d and 135 d formed in the terminals 134 and 135 respectively, by solder or the like, in the light guide holding hole 31 h , at positions lower than an opposing surface of the terminals 134 and 135 , opposing to the distal end portion main body 31 .
- a part of the terminals 134 and 135 are in contact with the light guide 25 having insulation.
- the gap 130 is formed between the terminals 134 and 135 and the distal end portion main body 31 .
- a connecting section on the distal end side of the flexible board 223 to the terminals 134 and 135 is electrically connected to the positions lower than the opposing surface to the distal end portion main body 31 in the terminals 134 and 135 . Therefore, unlike the first and second embodiments explained above, even if the insulating members 88 are not coated around the terminals 134 and 135 , the terminals 134 and 135 are prevented from coming into contact with the distal end portion main body 31 to be short-circuited.
- the terminals 134 and 135 are shown as being provided such that the distal ends are exposed on the distal end face 31 s in the light guide holding hole 31 h .
- the distal end of the flexible board 223 is shown as being electrically connected to the terminals 134 and 135 in the light guide holding hole 31 h.
- the endoscope for industrial use is explained as an example.
- the present invention may be applied to an endoscope for medical use.
Abstract
Description
- This application is a continuation application of PCT/JP2014/062087 filed on May 1, 2014 and claims benefit of Japanese Application No. 2013-115370 filed in Japan on May 31, 2013, the entire contents of which are incorporated herein by this reference.
- 1. Field of the Invention
- The present invention relates to an endoscope in which two or more kinds of adapters are individually detachably attachable to a distal end portion located at a distal end in an inserting direction of an insertion section.
- 2. Description of the Related Art
- As is well known, endoscopes are widely used in a medical field and an industrial field. With an endoscope used in the medical field, it is possible to, by inserting an elongated insertion section into a body cavity serving as a subject, observe an organ in the body cavity and perform various kinds of treatment using a treatment instrument inserted into a treatment instrument insert-through channel according to necessity.
- With an endoscope used in the industrial field, it is possible to, by inserting an elongated insertion section into a jet engine, a pipe in a factory, or the like serving as an object, perform observation, various kinds of treatment, and the like of scratches, corrosion, and the like in the object.
- A configuration is well known in which, in a distal end portion located on a distal end side in an inserting direction of an insertion section of an endoscope (hereinafter simply referred to as distal end side), an image pickup unit including an objective lens unit and an image pickup device such as a CCD is provided and an illumination unit or the like that illuminates an inside of an object is provided.
- A configuration is also well known in which the objective lens unit and the illumination unit are provided in a known optical adapter (hereinafter simply referred to as adapter) detachably attachable to the distal end portion of the insertion section.
- As the adapter, a direct-view adapter for observing a front in the inserting direction of the insertion section (hereinafter simply referred to as front) and a side-view adapter for observing a side different from the inserting direction are well known. The respective adapters are properly used according to observation targets and uses.
- Further, a plurality of adapters having different visual field angles is present in each of the direct-view adapter and the side-view adapter. These adapters are also properly used according to observation targets and uses. Therefore, a plurality of kinds of adapters is individually detachably attachable to the distal end portion.
- Japanese Patent Application Laid-Open Publication No. 2004-313241 discloses a configuration in which, in a plurality of adapters detachably attachable to a distal end portion, identification resistors having different resistance values for each of the adapters are provided and, when an adapter is attached to the distal end portion, an identification resistor comes into contact with a terminal for resistor identification provided in the distal end portion and energizes the identification resistor, whereby a CPU electrically connected to the terminal via a lead wire in a control unit, to which an endoscope is connected, reads a resistance value and automatically detects a type of the adapter attached to the distal end portion from the resistance value.
- Japanese Patent Application Laid-Open Publication No. 2004-313241 also discloses a configuration in which, since it is difficult to reduce the adapter or the distal end portion in diameter if a light source such as a light emitting element is provided in the adapter or the distal end portion of an insertion section, the light source is provided in the control unit, a light guide that guides illumination light irradiated from the light source to a distal end face located at a distal end in an inserting direction of the distal end portion (hereinafter simply referred to as distal end) is inserted through the endoscope, the illumination light emitted from a distal end of the light guide is made incident in the adapter, and an illumination optical system that supplies the illumination light into an object is provided.
- Incidentally, in general, the attachment of the adapter to the distal end portion including the configurations disclosed in Japanese Patent Application Laid-Open Publication No. 2004-313241 is performed by coating, with an inner circumference of a proximal end side in the inserting direction of the adapter (hereinafter simply referred to as proximal end side), an outer circumference of a mounting and detaching section located on a distal end side of the distal end portion and screwing, for example, with a male screw formed in the outer circumference of the mounting and detaching section, a female screw formed in an inner circumference of a stop ring extending from a proximal end in the inserting direction of the adapter (hereinafter simply referred to as proximal end) backward in the inserting direction (hereinafter simply referred to as backward).
- In the distal end portion including the mounting and detaching section, built-in components such as the lens unit in the image pickup unit, the terminal functioning as a member for adapter identification explained above, the lead wire extending from the terminal, the light guide explained above, and various channels are provided.
- An endoscope according to an aspect of the present invention is an endoscope in which two or more kinds of adapters are individually detachably attachable to a distal end portion located at a distal end in an inserting direction of an insertion section. The endoscope includes: a mounting and detaching section located on the distal end side in the inserting direction in the distal end portion, a connecting section of the adapter being detachably mountable on an outer circumference of the mounting and detaching section and a diameter of the mounting and detaching section being smaller than a diameter of another part of the distal end portion; a terminal provided to be exposed on a distal end face of the distal end in the inserting direction in the distal end portion in the mounting and detaching section, when the adapter is mounted on the outer circumference of the mounting and detaching section, the terminal coming into contact with an identification resistor provided in the adapter and having different resistance values for each of the adapters; a lead wire inserted through the insertion section, the lead wire energizing the identification resistor via the terminal; and a flexible board inserted through at least the mounting and detaching section, the flexible board being electrically connected to the terminal in the mounting and detaching section and electrically connected to a distal end in the inserting direction of the lead wire in a position behind the mounting and detaching section in the inserting direction.
-
FIG. 1 is a perspective view of an endoscope system including an endoscope showing a first embodiment; -
FIG. 2 is a sectional view of an adapter shown inFIG. 1 taken along line II-II; -
FIG. 3 is a plan view showing a distal end face of a distal end portion inFIG. 1 ; -
FIG. 4 is a sectional view of a distal end portion taken along line IV-IV inFIG. 3 ; -
FIG. 5 is a sectional view of the distal end portion taken along line V-V inFIG. 3 ; -
FIG. 6 is a sectional view of the distal end portion taken along line VI-VI inFIG. 5 ; -
FIG. 7 is a perspective view showing the distal end portion inFIG. 4 andFIG. 5 excluding an image pickup cover; -
FIG. 8 is an exploded perspective view in which a distal end portion main body is separated at the distal end portion inFIG. 7 ; -
FIG. 9 is an exploded perspective view in which a flexible board is separated from a part other than a mounting and detaching section at the distal end portion inFIG. 8 ; -
FIG. 10 is a partial sectional view schematically showing a part of a distal end portion of an insertion section of an endoscope in a second embodiment; -
FIG. 11 is a plan view of a distal end face of the distal end portion inFIG. 10 ; -
FIG. 12 is a plan view showing a modification of a disposition position of terminals on a distal end face of a projecting section inFIG. 10 ; -
FIG. 13 is a partial sectional view schematically showing a part of a distal end portion of an insertion section of an endoscope in a third embodiment; and -
FIG. 14 is a plan view of a distal end face of the distal end portion inFIG. 13 . - Embodiments of the present invention are explained below with reference to the drawings. Note that, in the following explanation, as an endoscope, an endoscope for industrial use is explained as an example.
-
FIG. 1 is a perspective view of an endoscope system including an endoscope showing the present embodiment. - As shown in
FIG. 1 , in anendoscope system 100, a main part is configured by anendoscope 20, an apparatusmain body 50 connected to theendoscope 20, and two or more kinds ofadapters 1. Note that, in the following explanation, in order to simplify the drawings and explanation, description of theadapter 1 is common to all of the two or more kinds of adapters. - In the
endoscope 20, a main part is configured by including an elongated andflexible insertion section 10, anoperation section 15 connected to a proximal end in an inserting direction S of theinsertion section 10 and including agrasping section 15 h, and auniversal cord 17 extended from thegrasping section 15 h of theoperation section 15. - A
distal end portion 11 to which the two or more kinds ofadapters 1 are individually detachably attachable, abending section 12 bendable in, for example, upward, downward, left, and right four directions according to operation of ajoystick 15 j provided in theoperation section 15, and a longflexible tube section 13 formed of a flexible member are concatenated to theinsertion section 10 in order from a distal end side of theinsertion section 10. A proximal end of theflexible tube section 13 is connected to theoperation section 15. - Note that, in the
operation section 15, besides thejoystick 15 j, for example, various not-shown switches for instructing an image pickup operation in an image pickup device 27 (seeFIG. 4 ) explained below provided in thedistal end portion 11 are provided. - The apparatus
main body 50 has, for example, a box shape. Amonitor 55 that displays an endoscopic image picked up by an image pickup device 27 (seeFIG. 4 ) of theendoscope 20 is fixed to anarmor housing 50 g, which is configured by, for example, magnesium die cast, to be capable of opening and closing with respect to, for example, the armor housing 50 g. Note that themonitor 55 may be detachably attachable to thearmor housing 50 g or may be fixed to thearmor housing 50 g in a state in which a monitor surface is always exposed. - Next, a configuration of the adapter and a configuration of the distal end portion are explained with reference to
FIG. 2 toFIG. 9 . -
FIG. 2 is a sectional view of the adapter inFIG. 1 taken along line II-II.FIG. 3 is a plan view showing a distal end face of the distal end portion inFIG. 1 .FIG. 4 is a sectional view of the distal end portion taken along line IV-IV inFIG. 3 .FIG. 5 is a sectional view of the distal end portion taken along line V-V inFIG. 3 . -
FIG. 6 is a sectional view of the distal end portion taken along line VI-VI inFIG. 5 .FIG. 7 is a perspective view showing the distal end portion inFIG. 4 andFIG. 5 excluding an image pickup cover.FIG. 8 is an exploded perspective view in which a distal end portion main body is separated at the distal end portion inFIG. 7 .FIG. 9 is an exploded perspective view in which a flexible board is separated from a part other than a mounting and detaching section at the distal end portion inFIG. 8 . - As shown in
FIG. 4 andFIG. 5 , thedistal end portion 11 includes a mounting and detachingsection 40 located on a distal end side in thedistal end portion 11. Theadapter 1 is detachably mountable on anouter circumference 40 g of the mounting and detachingsection 40. The mounting and detachingsection 40 is smaller in diameter than theother part 41 of thedistal end portion 11. - The mounting and detaching
section 40 includes, on an inside, a distal end portionmain body 31, which is a first frame, formed in a substantially columnar shape. Note that anouter circumference 31 g of the distal end portionmain body 31 configures theouter circumference 40 g of the mounting and detachingsection 40. In theouter circumference 31 g of the distal end portionmain body 31, amale screw 45 is formed, with which afemale screw 6 of a stop ring 5 (for both of which, seeFIG. 2 ) explained below of theadapter 1 is capable of being fit when theadapter 1 is mounted on the mounting and detachingsection 40. - On a
distal end face 31 s of the distal end portionmain body 31, a projectingsection 31 t projecting forward from thedistal end face 31 s is formed. Note that thedistal end face 31 s configures adistal end face 11 s of thedistal end portion 11. - The projecting
section 31 t is a member for, when theadapter 1 is mounted on the mounting and detachingsection 40, performing positioning of theadapter 1 with respect to thedistal end portion 11 by being fit in a recessedsection 4 h formed on a proximal end face of an adaptermain body 4 explained below of theadapter 1. - In the distal end portion
main body 31 and the projectingsection 31 t, alens unit 21, which is a first objective optical system, for observing an inside of an object is provided. - The
lens unit 21 is configured from a plurality of lenses, for example, three lenses. As shown inFIG. 3 andFIG. 4 , anobjective lens 21 a located most forward in the inserting direction S is fixed to the distal end portionmain body 31 to be exposed on adistal end face 31 ts of the projectingsection 31 t. Note that the number of the lenses configuring thelens unit 21 is not limited to three. Thedistal end face 31 ts configures thedistal end face 11 s of thedistal end portion 11. - As shown in
FIG. 3 , in the distal end portionmain body 31, a lightguide holding hole 31 h piercing through the distal end portionmain body 31 along the inserting direction S is formed in a position in the figure lower than theobjective lens 21 a as shown inFIG. 3 . Theuniversal cord 17 of theendoscope 20, and a distal end side of alight guide 25 inserted through the operation section and theinsertion section 10 are inserted through the lightguide holding hole 31 h. As shown inFIG. 3 andFIG. 5 , an emission end face 25 s is fixed to be exposed on thedistal end face 31 s. - Note that a proximal end of the
light guide 25 is located to be opposed to a not-shown light source provided in the apparatusmain body 50. As shown inFIG. 5 andFIG. 7 toFIG. 9 , in theother part 41 at thedistal end portion 11, thelight guide 25 is inserted through to extend along outer circumferences of alens frame 32 and adevice frame 28 explained below in a position in the figure lower than thelens frame 32, theimage pickup device 27, anelectric circuit boards 29, and asignal line 36 explained below. - The
light guide 25 guides illumination light made incident from the proximal end to the emission end face 25 s of thelight guide 25 and, when theadapter 1 is mounted on the mounting and detachingsection 40, supplies the illumination light irradiated from the emission end face 25 s to theadapter 1. Note that the illumination light supplied to theadapter 1 is irradiated on the inside of the object via a not-shown illumination optical system provided in theadapter 1. - As shown in
FIG. 3 toFIG. 5 , in the distal end portionmain body 31 and the projectingsection 31 t, twoterminals pins 3 p of an identification resistor 3 (for both of which, seeFIG. 2 ) explained below, which is provided in theadapter 1 and have different resistance values for eachadapter 1, when theadapter 1 is mounted on the mounting and detachingsection 40 are provided such that distal ends of theterminals distal end face 31 ts of the projectingsection 31 t. Note that, as shown inFIG. 4 andFIG. 5 , insulatingmembers 88 are respectively coated on outer circumferences of theterminals - The terminal 34 configures an anode terminal electrically connected to, via the
pin 3 p, an anode side of theidentification resistor 3 provided in theadapter 1 when theadapter 1 is mounted on the mounting and detachingsection 40. The terminal 35 configures a cathode terminal electrically connected to, via thepin 3 p, a cathode side of theidentification resistor 3 provided in theadapter 1 when theadapter 1 is mounted on the mounting and detachingsection 40. - As shown in
FIG. 3 , theterminals distal end face 31 ts in positions where theterminals objective lens 21 a in plan view of thedistal end face 31 ts. - More specifically, as shown in
FIG. 3 , theterminals distal end face 31 ts line-symmetrical with respect to a line “a” that connects acenter 21 ac of theobjective lens 21 a and acenter 25 sc of the emission end face 25 s of thelight guide 25. - Note that, on the
distal end face 31 ts, a reason for providing theterminals terminals objective lens 21 a is to insert theterminals section 31 t such that the distal ends are exposed on thedistal end face 31 ts without increasing an area of thedistal end face 31 ts, that is, without increasing the projectingsection 31 t in diameter. - This is because, on the
distal end face 31 ts, for example, if it is attempted to provide the terminal 34 in a position right above the terminal 35 side by side, the area of thedistal end face 31 ts has to be increased in order to secure a disposition region of the terminal 34 on thedistal end face 31 ts and, as a result, the projectingsection 31 t is increased in diameter but, if theterminals objective lens 21 a as shown inFIG. 3 , since theterminals distal end face 31 ts even if the area of thedistal end face 31 ts is not increased, it is possible to reduce the projectingsection 31 t, that is, the mounting and detachingsection 40 in diameter. - Therefore, the disposition positions of the
terminals distal end face 31 ts are not limited to the positions shown inFIG. 3 . Theterminals objective lens 21 a on thedistal end face 31 ts as long as the mounting and detachingsection 40 is not increased in diameter in the positions. - As shown in
FIG. 2 , theadapter 1 mounted on theouter circumference 40 g of the mounting and detachingsection 40 includes the adaptermain body 4 formed in a substantially columnar shape. - On a proximal end face of the adapter
main body 4, the recessedsection 4 h formed to be recessed forward from the proximal end face along the inserting direction S is formed in a position opposed to the projectingsection 31 t when theadapter 1 is mounted on the mounting and detachingsection 40. - The recessed
section 4 h is a part in which the projectingsection 31 t fits as explained above when theadapter 1 is mounted on the mounting and detachingsection 40. - A
stop ring 5, which is a connecting section, in an inner circumference of which thefemale screw 6 is formed, is extended backward from an outer circumference of a proximal end of the adaptermain body 4. Thestop ring 5 is screwed with themale screw 45 formed in theouter circumference 31 g of the distal end portionmain body 31 when theadapter 1 is mounted on the mounting and detachingsection 40, that is, the projectingsection 31 t is fit in the recessedsection 4 h. Consequently, theadapter 1 is fixed to an outer circumference of the mounting and detachingsection 40. Note that, since thefemale screw 6 is capable of being screwed with themale screw 45, theadapter 1 is detachably mountable on the mounting and detachingsection 40. - Note that an outer diameter of an
outer circumference 4 g of the adaptermain body 4 and an outer diameter of anouter circumference 5 g of thestop ring 5 are formed substantially the same as an outer diameter of anouter circumference 41 g of theother part 41 of thedistal end portion 11 when theadapter 1 is mounted on the mounting and detachingsection 40. Consequently, even if theadapter 1 is mounted on the mounting and detachingsection 40, an outer circumference of theadapter 1 is not located to protrude further to an outer side in a radial direction R than an outer circumference of thedistal end portion 11. - In the adapter
main body 4, in a position overlapping the recessedsection 4 h along the inserting direction S, anobjective lens unit 2 for observing the inside of the object configured from a plurality of lenses, for example, three lenses is fixed such that a lens located most forward is exposed on adistal end face 1 s of theadapter 1. Note that the number of lenses configuring theobjective lens unit 2 is not limited to three. - Therefore, when the
adapter 1 is mounted on the mounting and detachingsection 40, an observation part in the object is subjected to image pickup by theimage pickup device 27 via theobjective lens unit 2 andlens units 21 and 22 (for all of which, seeFIG. 4 andFIG. 5 ) explained below. - In the adapter
main body 4, in a position opposed to the emission end face 25 s of thelight guide 25, an illumination optical system configured from a not-shown elongated rod lens and a not-shown illumination lens along the inserting direction S is fixed such that the illumination lens is exposed on thedistal end face 1 s when theadapter 1 is mounted on the mounting and detachingsection 40. - In the adapter
main body 4, theidentification resistor 3, which has a different resistance value for each of a plurality ofadapters 1, electrically connected to theterminals adapter 1 is mounted on the mounting and detachingsection 40 is provided. - On an anode side and a cathode side of the
identification resistor 3, thepins 3 p such as sliding pins movable back and forth in the inserting direction S are respectively electrically connected. On the proximal end face of the adaptermain body 4, proximal ends of therespective pins 3 p are exposed in positions where theterminals pins 3 p when theadapter 1 is mounted on the mounting and detachingsection 40. - Referring back to
FIG. 4 andFIG. 5 , a recessedsection 31 d recessed forward is formed on a proximal end face of the distal end portionmain body 31. An outer circumference of a part of alens frame 32, which is a second frame, is fit and fixed to aninner circumference 31 n formed by the recessedsection 31 d. - In the
lens frame 32, in a position overlapping thelens unit 21 in the inserting direction S, alens unit 22, which is a second objective optical system, configured from a plurality of lenses, for example, two lenses is fixed to be located behind thelens unit 21. Note that the number of lenses configuring thelens unit 22 is not limited to two. - An outer circumference on a distal end side of a
device frame 28, on an inside of which theimage pickup device 27 such as a CCD or a C-MOS and theelectric circuit boards 29 are fixed, is fixed to an inner circumference on a proximal end side of thelens frame 32. - When the
adapter 1 is mounted on the mounting and detachingsection 40, theimage pickup device 27 picks up an image of an observation part in the object via theobjective lens unit 2 and thelens units - Note that the
electric circuit boards 29 for adjusting an electric output of theimage pickup device 27 are electrically connected to theimage pickup device 27. Theuniversal cord 17, theoperation section 15, and a distal end of asignal line 36 inserted through theinsertion section 10 are electrically connected to theelectric circuit boards 29. - A proximal end of the
signal line 36 is connected to a not-shown image processing unit or the like in the apparatusmain body 50. Consequently, the image of the observation part picked up by theimage pickup device 27 is transmitted to the image processing unit in the apparatusmain body 50 via theelectric circuit boards 29 and thesignal line 36 and thereafter displayed on themonitor 55. - As shown in
FIG. 4 andFIG. 5 , a distal end of animage pickup case 95 that covers a lens close to theimage pickup device 27 configuring thelens unit 22, theimage pickup device 27, theelectric circuit boards 29, and the distal end side of thesignal line 36 is fixed to theouter circumference 31 g on a proximal end side of the distal end portionmain body 31. - Note that a fixing position of the
image pickup case 95 to theouter circumference 31 g of the distal end portionmain body 31 may be set forward relative to a position shown inFIG. 4 andFIG. 5 . Amale screw 45 with which thefemale screw 6 of theadapter 1 is screwed may be formed in an outer circumference of theimage pickup case 95. - As shown in
FIG. 4 ,FIG. 5 , andFIG. 7 toFIG. 9 , alead wire 26 for distinguishing a type of theadapter 1 with a not-shown CPU in the apparatusmain body 50 by, when theadapter 1 is mounted on the mounting and detachingsection 40, energizing theidentification resistor 3 via theterminals pins 3 p with electric power from a not-shown energizing unit provided in the apparatusmain body 50 and transmitting a resistance value of theidentification resistor 3 to a not-shown identification circuit in the apparatusmain body 50 is inserted through theuniversal cord 17, theoperation section 15, and theinsertion section 10. - Note that, as in the past, in a configuration in which a distal end of the
lead wire 26 is directly connected to theterminals lead wire 26 has to be directly connected to theterminals section 40, that is, a lead wire insert-through hole formed in the distal end portionmain body 31. However, as explained above, the mounting and detachingsection 40 is formed smaller in diameter than theother part 41. Therefore, it is difficult to separately secure the space for inserting thelead wire 26 in the mounting and detachingsection 40. - Therefore, in the present embodiment, a configuration is adopted in which the distal end of the
lead wire 26 is located behind the mounting and detachingsection 40 and the distal end of thelead wire 26 and theterminals flexible board 23 inserted at least through the mounting and detachingsection 40 along the inserting direction S. - More specifically, as shown in
FIG. 8 andFIG. 9 , theflexible board 23 is configured from a semicircularterminal connecting section 23 a to which proximal ends of theterminals gap passing section 23 b concatenated to theterminal connecting section 23 a, a lens framecutout passing section 23 c concatenated to thegap passing section 23 b, and a leadwire connecting section 23 d concatenated to the lens framecutout passing section 23 c. - As shown in
FIG. 8 andFIG. 9 , theterminal connecting section 23 a is formed to be bent approximately 90° to a right side inFIG. 8 andFIG. 9 from a distal end of thegap passing section 23 b to thereby being located not to be superimposed on thelens units lens unit 22. Note that theterminal connecting unit 23 a is formed in the semicircular shape in order to prevent theterminal connecting section 23 a from blocking a light beam made incident on thelens unit 22 from thelens unit 21. - On a distal end face in a vicinity of an opening
end portion 23 ak of the semicircularterminal connecting section 23 a, as shown inFIG. 4 andFIG. 5 , theterminals space 31 dh in front of a distal end of thelens frame 32 in the recessedsection 31 d. - Note that the
terminals end portion 23 ak of the semicircularterminal connecting section 23 a in order to dispose the distal ends of theterminals objective lens 21 a on thedistal end face 31 ts as explained above. - Therefore, if a shape of the
terminal connecting section 23 a is changed, an exposed position of the distal end on thedistal end face 31 ts of theterminals terminal connecting section 23 a, can be freely set. - Note that, since the
flexible board 23 is used for the electric connection of theterminals terminals section 31 t. This is because it is difficult to form, with a lead wire, the semicircularterminal connecting section 23 a in the present embodiment. - As shown in
FIG. 4 andFIG. 6 , in the mounting and detachingsection 40, thegap passing section 23 b is inserted through agap 33 provided by forming acutout 31 k in theinner circumference 31 n on left inFIG. 6 between anouter circumference 32 g of thelens frame 32 and theinner circumference 31 n formed by the recessedsection 31 d. - Note that the
cutout 31 k may be formed in theouter circumference 32 g of thelens frame 32 or may be formed in both of theinner circumference 31 n and theouter circumference 32 g. Thegap 33 may be provided by a groove formed in at least one of theinner circumference 31 n and theouter circumference 32 g, and is not limited to be provided by thecutout 31 k. - Note that a forming position of the
gap 33 by thecutout 31 k is not limited to left inFIG. 6 and may be right or may be an upper or lower part. - If the forming position of the
gap 33 changes, a passing position of thegap passing section 23 b also changes. Therefore, a bending direction of theterminal connecting section 23 a from the distal end of thegap passing section 23 b also changes in order to locate theterminal connecting section 23 a in front of thelens unit 22. - As shown in
FIG. 4 andFIG. 7 toFIG. 9 , in theother part 41, the lens framecutout passing section 23 c passes acutout 32 k formed on left inFIG. 7 toFIG. 9 in theouter circumference 32 g of thelens frame 32 to thereby be located along left of theouter circumference 32 g of thelens frame 32. - Note that a forming position of the
cutout 32 k is not limited to the left inFIG. 7 toFIG. 9 and may be right or may be an upper or lower part according to the forming position of thegap 33. - As shown in
FIG. 4 andFIG. 7 , in a position behind the mounting and detachingsection 40, that is, in theother part 41, the leadwire connecting section 23 d is a part to which the distal end of thelead wire 26 is electrically connected by solder or the like. The leadwire connecting section 23 d is located along left of an outer circumference of thedevice frame 28. Note that, as explained above, a disposition position of the leadwire connecting section 23 d with respect to the outer circumference of thedevice frame 28 is different according to a disposition position of the lens framecutout passing section 23 c. - As explained above, the
terminals lead wire 26 are electrically connected via theflexible board 23. - In this way, in the present embodiment, the
terminals terminal connecting section 23 a of theflexible board 23 in thespace 31 dh of the recessedsection 31 d in the mounting and detachingsection 40. - The distal end of the
lead wire 26 is electrically connected to the leadwire connecting section 23 d of the flexible board in theother part 41 behind the mounting and detachingsection 40. - Further, in the mounting and detaching
section 40, theflexible board 23 is shown as being inserted through thegap 33 provided by forming thecutout 31 k in theinner circumference 31 n between theouter circumference 32 g of thelens frame 32 and theinner circumference 31 n formed by the recessedsection 31 d. - Consequently, the distal end of the
lead wire 26 is electrically connected to the proximal end of theflexible board 23 in theother part 41. The distal end of theflexible board 23 is electrically connected to theterminals section 40. Therefore, thelead wire 26 is not inserted through the mounting and detachingsection 40. - Therefore, since it is unnecessary to separately provide an insert-through space for the
lead wire 26 in the mounting and detachingsection 40, that is, in the distal end portionmain body 31 as in the past, it is possible to reduce the mounting and detachingsection 40 in diameter. - In the mounting and detaching
section 40, thegap passing section 23 b is inserted through thegap 33 because the cutout is formed in theinner circumference 31 n between theouter circumference 32 g and theinner circumference 31 n, that is, thegap passing section 23 b is inserted through thegap 33 formed using a fitting surface of theouter circumference 32 g and theinner circumference 31 n. Therefore, it is unnecessary to separately provide an insert-through space for theflexible board 23 in the distal end portionmain body 31. Further, the distal end portionmain body 31 is not increased in diameter according to the formation of thegap 33. Therefore, it is possible to reduce the mounting and detachingsection 40 in diameter. - In the present embodiment, the
terminals distal end face 31 ts, used for distinguishing, when theadapter 1 is mounted on the mounting and detachingsection 40, a type of theadapter 1 by energizing theidentification resistor 3 via thepins 3 p is shown as being provided to be separated from each other in the positions where theterminals objective lens 21 a because theterminal connecting section 23 a of theflexible board 23 is formed in the semicircular shape and the proximal ends of theterminals end portion 23 ak. - Consequently, in a region other than the disposition region of the
objective lens 21 a on thedistal end face 31 ts, it is possible to expose the distal ends of theterminals distal end face 31 ts. That is, since the projectingsection 31 t, through which theterminals section 40 in diameter. - Since the
terminal connecting section 23 a, to which theterminals flexible board 23, it is possible to change the shape of theterminal connecting section 23 a. Further, since connecting positions of theterminals terminal connecting section 23 a can also be freely set, it is possible to freely set the insert-through positions of theterminals section 31 t in positions where the projectingsection 31 t is not increased in diameter. Therefore, it is possible to reduce the mounting and detachingsection 40 in diameter. - Further, since the
terminals terminal connecting section 23 a located to be bent approximately 90° from the distal end of thegap passing section 23 b, it is possible to further reduce the connecting section for the terminals in size than the configuration in which the lead wire is directly connected to the terminals. Therefore, it is possible to reduce the mounting and detaching section in diameter. - Consequently, it is possible to provide the
endoscope 20 including a configuration that can realize a reduction in the diameter of the mounting and detachingsection 40 even if the mounting and detachingsection 40 includes a member for adapter identification. -
FIG. 10 is a partial sectional view schematically showing a part of a distal end portion of an insertion section of an endoscope in the present embodiment.FIG. 11 is a plan view of a distal end face of the distal end portion inFIG. 10 .FIG. 12 is a plan view showing a modification of a disposition position of terminals on a distal end face of a projecting section inFIG. 10 . - A configuration of the endoscope in the second embodiment is different from the endoscope in the first embodiment shown in
FIG. 1 toFIG. 9 explained above in that, in a mounting and detaching section, a flexible board is inserted through a light guide holding hole. Therefore, only this difference is explained. Components same as the components in the first embodiment are denoted by the same reference numerals and signs and explanation of the components is omitted. - As shown in
FIG. 10 , in the present embodiment, aflexible board 123 that electrically connects the terminal 34 and 35 and distal end of thelead wire 26 is configured from aterminal connecting section 123 a, a light guide holding hole insert-throughsection 123 b concatenated to theterminal connecting section 123 a, and a not-shown lead wire connecting section concatenated to the light guide holding hole insert-throughsection 123 b. - The light guide holding hole insert-through
section 123 b is inserted through the lightguide holding hole 31 h together with thelight guide 25. That is, in the mounting and detachingsection 40, the light guide holding hole insert-throughsection 123 b is inserted through the lightguide holding hole 31 h. - Note that, in
FIG. 10 , the light guide holding hole insert-throughsection 123 b is inserted through the lightguide holding hole 31 h in theother part 41 as well. However, without being limited thereto, a part of theflexible board 123 inserted through theother part 41 may be drawn out to an outside of the lightguide holding hole 31 h. - In the present embodiment as well, although not shown in the figure, the light guide holding hole insert-through
section 123 b is drawn out to the outside of the lightguide holding hole 31 h in theother part 41. In a position behind the mounting and detachingsection 40, the distal end of thelead wire 26 is electrically connected to a lead wire connecting section concatenated to the light guide holding hole insert-throughsection 123 b. - Further, in the present embodiment, in front of the light
guide holding hole 31 h, theterminal connecting section 123 a is bent approximately 90° from a distal end of the light guide holding hole insert-throughsection 123 b and located to be opposed to thedistal end face 31 ts. As shown inFIG. 10 toFIG. 12 , theterminal connecting section 123 a is fixed to a position other than the disposition region of theobjective lens 21 a on thedistal end face 31 ts. - The
terminals terminal connecting section 123 a fixed to thedistal end face 31 ts. - Note that, as in the first embodiment explained above, by changing a shape of the
terminal connecting section 123 a as shown inFIG. 11 andFIG. 12 , connecting positions of theterminals terminal connecting section 123 a may be provided in positions shifted to an outer circumferential edge side of thedistal end face 31 ts from the positions where theterminals objective lens 21 a as shown inFIG. 12 . More specifically, theterminals FIG. 11 , theterminals - Note that, as explained above, in disposition positions of the
terminals FIG. 12 , the projectingsection 31 t can be further reduced in diameter than in disposition positions of theterminals FIG. 11 . - Note that the other components are the same as the components in the first embodiment explained above.
- In this way, in the present embodiment, in the
flexible board 123, at least a part in the mounting and detachingsection 40 is shown as being inserted through the lightguide holding hole 31 h. - Consequently, it is unnecessary to separately provide a space for inserting through the
flexible board 123 in the mounting and detachingsection 40, that is, in the distal end portionmain body 31. Therefore, a configuration of the distal end portionmain body 31 is simplified. Further, it is possible to reduce the mounting and detachingsection 40 in diameter. - In the present embodiment, the connection of the
terminals flexible board 123 is shown as being performed to theterminal connecting section 123 a fixed to thedistal end face 31 ts. - Consequently, the
space 31 dh for electrically connecting theterminals flexible board 123 in the distal end portionmain body 31 as in the first embodiment explained above is unnecessary. Therefore, it is possible to attain a reduction in a diameter of the mounting and detachingsection 40. - Further, since the
terminals terminal connecting section 123 a located to be bent approximately 90° from the distal end of the light guide holding hole insert-throughsection 123 b, it is possible to further reduce the connecting section for the terminals in size than the configuration in which the lead wire is directly connected to the terminals. Therefore, it is possible to reduce the mounting and detaching section in diameter. - In the first embodiment explained above, water tightness has to be secured for three sections, i.e., the hole in which the
lens unit 21 is provided, the lightguide holding hole 31 h, and thegap 33 in the distal end portionmain body 31. On the other hand, in the present embodiment, water tightness only has to be secured for two sections, i.e., the hole in which thelens unit 21 is provided and the lightguide holding hole 31 h. Therefore, it is easy to secure water tightness for the mounting and detachingsection 40. Further, assemblability is also improved. - Further, simply by changing a shape of the
terminal connecting section 123 a and changing the connecting positions of theterminals terminal connecting section 123 a, it is possible to freely change the connecting positions of theterminals distal end face 31 ts. - Note that other effects are the same as the effects in the first embodiment explained above.
-
FIG. 13 is a partial sectional view schematically showing a part of a distal end portion of an insertion section of an endoscope in the present embodiment.FIG. 14 is a plan view of a distal end face of the distal end portion inFIG. 13 . - A configuration of the endoscope in the third embodiment is different from the endoscope in the second embodiment shown in
FIG. 10 toFIG. 12 explained above in that terminals are also provided in a light guide holding hole. Therefore, only this difference is explained. Components same as the components in the second embodiment are denoted by the same reference numerals and signs and explanation of the components is omitted. - As shown in
FIG. 13 andFIG. 14 , in the present embodiment as well, aflexible board 223 is inserted through the lightguide holding hole 31 h. Therefore, a part of theflexible board 223 located in the mounting and detachingsection 40 is also naturally inserted through the lightguide holding hole 31 h. - As in the second embodiment explained above, a proximal end side of the
flexible board 223 is drawn out to the outside of the lightguide holding hole 31 h in theother part 41. The distal end of thelead wire 26 is electrically connected to a not-shown lead wire connecting section provided at the proximal end of theflexible board 223. - In the present embodiment, in the distal end in the light
guide holding hole 31 h,terminals terminals distal end face 31 s together with the emission end face 25 s of thelight guide 25 from a distal end opening as shown inFIG. 14 . Note that functions of theterminals terminals - As shown in
FIG. 14 , in the lightguide holding hole 31 h, as in the first and second embodiments explained above, theterminals distal end face 31 s from the positions where theterminals objective lens 21 a on thedistal end face 31 s. More specifically, theterminals - Further, in the light
guide holding hole 31 h, theterminals guide holding hole 31 h and an outer circumferential face of thelight guide 25. - As shown in an enlarged view of
FIG. 13 , a part of theterminals light guide 25 having insulation. Parts of theterminals light guide 25 are located to be separated to have agap 130 with respect to the distal end portionmain body 31. - Further, in the present embodiment, a distal end side of the
flexible board 223 is divided into two, though not shown. The respective distal ends are electrically connected respectively to stepsections terminals guide holding hole 31 h, at positions lower than an opposing surface of theterminals main body 31. - With such a configuration, a part of the
terminals light guide 25 having insulation. Thegap 130 is formed between theterminals main body 31. Further, a connecting section on the distal end side of theflexible board 223 to theterminals main body 31 in theterminals members 88 are not coated around theterminals terminals main body 31 to be short-circuited. - Note that other components are the same as the components in the second embodiment explained above.
- In this way, in the present embodiment, the
terminals distal end face 31 s in the lightguide holding hole 31 h. The distal end of theflexible board 223 is shown as being electrically connected to theterminals guide holding hole 31 h. - Consequently, it is unnecessary to dispose the terminals on the
distal end face 31 ts as in the second embodiment explained above. Therefore, since the projectingsection 31 t can be reduced in diameter by the size of the terminals, it is possible to reduce the mounting and detachingsection 40 in diameter. Note that other effects are the same as the effects in the second embodiment explained above. - In the first to third embodiments explained above, the endoscope for industrial use is explained as an example. However, it goes without saying that the present invention may be applied to an endoscope for medical use.
Claims (9)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2013-115370 | 2013-05-31 | ||
JP2013115370 | 2013-05-31 | ||
PCT/JP2014/062087 WO2014192501A1 (en) | 2013-05-31 | 2014-05-01 | Endoscope |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2014/062087 Continuation WO2014192501A1 (en) | 2013-05-31 | 2014-05-01 | Endoscope |
Publications (2)
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US20160077323A1 true US20160077323A1 (en) | 2016-03-17 |
US10401612B2 US10401612B2 (en) | 2019-09-03 |
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US14/953,941 Active 2036-04-10 US10401612B2 (en) | 2013-05-31 | 2015-11-30 | Endoscope |
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US (1) | US10401612B2 (en) |
EP (1) | EP3006986A4 (en) |
JP (1) | JP6437912B2 (en) |
CN (1) | CN105164562B (en) |
WO (1) | WO2014192501A1 (en) |
Citations (6)
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US6095970A (en) * | 1997-02-19 | 2000-08-01 | Asahi Kogaku Kogyo Kabushiki Kaisha | Endoscope |
US6184923B1 (en) * | 1994-11-25 | 2001-02-06 | Olympus Optical Co., Ltd. | Endoscope with an interchangeable distal end optical adapter |
US20050014996A1 (en) * | 2003-04-11 | 2005-01-20 | Yutaka Konomura | Optical adaptor and endoscope device |
US20050177027A1 (en) * | 2004-02-09 | 2005-08-11 | Olympus Corporation | Endoscope apparatus |
US20050240077A1 (en) * | 2004-04-02 | 2005-10-27 | Jean Rovegno | Device for metrology by laser mapping for a videoendoscopic probe |
US20100018849A1 (en) * | 2008-07-25 | 2010-01-28 | Air Products And Chemicals, Inc. | Removal of Trace Arsenic Impurities from Triethylphosphate (TEPO) |
Family Cites Families (9)
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JP2000047121A (en) * | 1998-07-31 | 2000-02-18 | Olympus Optical Co Ltd | Endoscope device |
JP4987257B2 (en) * | 2005-06-29 | 2012-07-25 | オリンパス株式会社 | Endoscope |
JP4884123B2 (en) * | 2006-08-03 | 2012-02-29 | オリンパス株式会社 | Adapter type endoscope |
JP5248811B2 (en) * | 2007-06-25 | 2013-07-31 | オリンパス株式会社 | Endoscope sheath |
JP5185572B2 (en) * | 2007-07-03 | 2013-04-17 | オリンパス株式会社 | Endoscope |
US8314835B2 (en) * | 2009-01-23 | 2012-11-20 | Olympus Corporation | Endoscope adapter including light emitting diode, and adapter type endoscope |
JP2011010949A (en) * | 2009-07-03 | 2011-01-20 | Olympus Corp | Endoscope device, endoscope system, and adaptor for endoscope |
JP5361596B2 (en) * | 2009-07-29 | 2013-12-04 | オリンパス株式会社 | Adapter and endoscope |
JP2011170094A (en) * | 2010-02-18 | 2011-09-01 | Olympus Corp | Endoscope adapter, and endoscope |
-
2014
- 2014-05-01 CN CN201480025094.6A patent/CN105164562B/en active Active
- 2014-05-01 WO PCT/JP2014/062087 patent/WO2014192501A1/en active Application Filing
- 2014-05-01 JP JP2015519759A patent/JP6437912B2/en active Active
- 2014-05-01 EP EP14803409.3A patent/EP3006986A4/en not_active Withdrawn
-
2015
- 2015-11-30 US US14/953,941 patent/US10401612B2/en active Active
Patent Citations (6)
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US6184923B1 (en) * | 1994-11-25 | 2001-02-06 | Olympus Optical Co., Ltd. | Endoscope with an interchangeable distal end optical adapter |
US6095970A (en) * | 1997-02-19 | 2000-08-01 | Asahi Kogaku Kogyo Kabushiki Kaisha | Endoscope |
US20050014996A1 (en) * | 2003-04-11 | 2005-01-20 | Yutaka Konomura | Optical adaptor and endoscope device |
US20050177027A1 (en) * | 2004-02-09 | 2005-08-11 | Olympus Corporation | Endoscope apparatus |
US20050240077A1 (en) * | 2004-04-02 | 2005-10-27 | Jean Rovegno | Device for metrology by laser mapping for a videoendoscopic probe |
US20100018849A1 (en) * | 2008-07-25 | 2010-01-28 | Air Products And Chemicals, Inc. | Removal of Trace Arsenic Impurities from Triethylphosphate (TEPO) |
Also Published As
Publication number | Publication date |
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EP3006986A1 (en) | 2016-04-13 |
CN105164562B (en) | 2018-05-15 |
WO2014192501A1 (en) | 2014-12-04 |
US10401612B2 (en) | 2019-09-03 |
CN105164562A (en) | 2015-12-16 |
EP3006986A4 (en) | 2017-02-15 |
JP6437912B2 (en) | 2018-12-12 |
JPWO2014192501A1 (en) | 2017-02-23 |
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